//
//  Child.h
//  kvo-oc
//
//  Created by 看着太阳吃烧饼 on 15/5/16.
//  Copyright (c) 2015年 看着太阳吃烧饼. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface Child : NSObject

@property (nonatomic,assign) NSInteger cleanValue;
@property (nonatomic,assign) NSInteger happyValue;
@end
